This paper describes the particularities of satellite navigation on the territory of Romania in search of solutions to improve the accuracy of these systems. The performance of a Global Navigation Satellite System (GNSS) is influenced by many factors, including distortion of the signal, the influence of the ionosphere and the troposphere, multipath propagation. Some of these factors depend on the geographical position and the environment in which the navigation system is used. Moreover, Romania is located at the border of coverage of two Satellite Based Augmentation Systems (SBAS) – European Geostationary Navigation Overlay Service (EGNOS) and System for Differential Corrections and Monitoring (SDCM) which leads to some peculiarities regarding satellite navigation.
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